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Finding the Fourth Proportional to 181,962.64, 251,101.78 and 101,385.97

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Solution

The fourth proportional to 181,962.64, 251,101.78 and 101,385.97 is: 139,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,962.64 : 251,101.78 = 101,385.97 : x
  2. Step 2: Convert to fraction form
    181,962.64/251,101.78 = 101,385.97/x
  3. Step 3: Cross multiply
    181,962.64x = 251,101.78 × 101,385.97
  4. Step 4: Simplify right side
    181,962.64x = 25,458,197,534.03
  5. Step 5: Solve for x
    x = 25,458,197,534.03/181,962.64
  6. Step 6: Final answer
    x = 139,908.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.